Consider a wind turbine subjected to 30 km/hr steady winds. if the turbine produces 480 kw of power and the velocity downstream of the wind turbine is 25 km/hr, determine the turbine efficiency, turbine diameter, and the horizontal force exerted by the wind on the supporting mast of the turbine. take density of air to be 1.25 kg/m^3

Consider a large isothermal enclosure that is maintained at a uniform temperature of 2000 k. calculate the emissive power of the radiation that emerges from a small aperture on the enclosure surface. what is the wavelength ? , below which 10% of the emission is concentrated? what is the wavelength ? 2 above which 10% of the emission is concentrated? determine the wavelength at which maximum spectral emissive power occurs. what is the irradiation incident on a small object placed inside the enclosure?

Which of the following controllers anticipates the future from the slope of errors over time? a)-proportional b)-on/off c)-integral d)-derivative.

Have a greater impact on maintenance productivity than any other support group. (clo5) a)-the top management b)-inventory and purchasing c)-sub-contracting d)-cmms